Carton blank



FIG. 1 is a plan view of a carton blank showing our new design, the opposite side being a mirror image thereof; and

FIG. 2 is a plan view showing a modified form of our new design, the opposite side being a mirror image thereof.

The blank is of conventional thickness. The broad dashed lines represent fold lines and the short dashed lines represent perforations. 

The ornamental design for a carton blank, as shown and described. 